Pediatric erythema multiforme induced by topical imiquimod: a case report.

Erythema multiforme (EM) is a rare immune-mediated reaction with mucocutaneous involvement. This case report describes the development of EM in a 9-year-old girl after treatment with imiquimod, a topical immunomodulator used in the management of some dermatologic conditions. Because imiquimod-related EM is rare, particularly in children, this article also reviews the potential adverse effects of this drug and the main characteristics of imiquimod-induced EM, especially in similar cases reported in the literature. Clinicians should be aware that topical imiquimod can induce EM, and this medication should be added to the extensive list of drugs that can trigger the condition.